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https://issues.apache.org/jira/browse/CRUNCH-600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igor Bernstein updated CRUNCH-600:
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Attachment: CRUNCH-600-c.patch
> Credentials are lost in local runner mode
> -----------------------------------------
>
> Key: CRUNCH-600
> URL: https://issues.apache.org/jira/browse/CRUNCH-600
> Project: Crunch
> Issue Type: Bug
> Reporter: Igor Bernstein
> Priority: Minor
> Attachments: CRUNCH-600-c.patch
>
>
> The credentials attached to a job are lost when CrunchOutputs builds a new
> Job in getJob.
> For example, the following scenario fails:
> {code:title=MyTarget.java}
> class MyTarget implements MapReduceTarget {
> void configureForMapReduce(Job job, PType<?> ptype, Path outputPath, String
> name) {
> job.getCredentials().addSecretKey("myPassword", "secret".getBytes());
> CrunchOutputs.addNamedOutput(job, name,
> FormatBundle.forOutput(MyOutputFormat.class), Object.class);
> }
> //..
> }
> {code}
> {code:title=MyOutputFormat.java}
> class MyOutputFormat extends OutputFormat<Object,Object> {
> public RecordWriter<Object, Object> getRecordWriter(TaskAttemptContext
> context) throws IOException, InterruptedException {
> Assert.equals("secret".getBytes(),
> context.getCredentials().getSecretKey("myPassword"));
> }
> }
> {code}
> This happens because CrunchOutputs.getJob copies the baseConf using the base
> Configuration class and the base Configuration class doesn't have a notion of
> Credentials, so the credentials get dropped.
> This issue only manifests itself when using the local runner. In an actual
> hadoop cluster the credentials will be inherited from UserGroupInformation.
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